Minisymposium

Quasistatic Electromagnetic Field Problems Including Capacitive, Inductive and Resistive Effects: Applications and Models


Organizers of the Minisymposium:

Prof. Dr. Markus Clemens, University of Wuppertal, Germany Dr. Michael Panteliat, National Technical University "Kharkiv Polytechnic Institute", Kharkiv, Ukraine

Abstract:
The ongoing trend towards an electrification and automatization of mobility systems and also towards decentralized regenerative electrical power generation distribution systems poses a challenging task for contemporary simulation tools in the field of computational electromagnetics. The computer aided design and optimization of the complex electric and electronic systems involved often has to address aspects of cost effectiveness and energy efficiency, while the added complexity of multiple electric systems interacting in the vicinity of each other or within complex electromagnetic environments results in the problem of maintaining electromagnetic compatibility of the final design.
Electromagnetic systems that are operating at frequencies at which radiation effects need to be considered are now well accessible for a range of advanced computational electromagnetics simulation tools based on the full set of Maxwell’s equations. A vast range of systems, however, operates at frequencies in the quasistatic regime, i.e., where the shortest wave lengths involved are large w.r.t. the geometrical characteristic dimension of the devices under consideration, in which case, radiation effects can be neglected. For configurations that either only resistive and inductive effects, or only capacitive and resistive effects need to be considered, a large body of magneto-quasistatic and electro-quasistatic field models exist, and in most cases relevant commercial simulation tools are available. 
The recent technological development towards a higher system integration with increasing power and information densities, however, brings up electromagnetic field problems in the quasistatic model range, where resistive, capacitive and inductive effects need to be considered simultaneously, but radiation effects can be neglected. The modelling and simulation of applications that fit into this regime of quasistatic electromagnetic field problems is now, even after more than 150 years of Maxwell field theory, a challenging topic of ongoing research efforts in the field of computational electromagnetics, in particular for transient problems with nonlinear materials. 
The planned minisymposium intends to bring together presentations that demonstrate emerging applications that are linked to such quasistatic electromagnetic field problems, as well as the current state-of-the-art in existing numerical modelling approaches for such problems.

List of topics: 
For quasistatic electromagnetic field problems that include capacitive, resistive and resistive effects, so far models and simulation models involve merely pure Kirchhoff type circuit models, lumped parameter models with parameters extracted from electro- or magnetostatic field simulations, circuit description PEEC(-type) formulations and field-type formulations. Field-type formulations often start from the full set of Maxwell’s equations, although intrinsically neglecting the radiation effects, and mostly relate to stabilized mixed-potential formulations and frequency domain formulations. Rather recently, field models based on the quasistatic Darwin model have been formulated.